Sloping Pear-Shape Splash Head, 24/29 Flask and 19/26 Condenser Cones, Borosilicate Glass Glass Bottles_BOD Bottles Determines gravitational acceleration g by

Determines gravitational acceleration g by timing free-fall of a steel sphere released from an electromagnet

and amphibian skeletal structure for comparative vertebrate teaching

Nine-model set traces embryonic and fetal development across the full gestational period

the wide aperture and longer focal distance suiting whole-page reading and broader image-formation experiments

pin and gauge objects

Sloping Pear-Shape Splash Head, 24/29 Flask and 19/26 Condenser Cones, Borosilicate Glass Glass Bottles_BOD Bottles Determines gravitational acceleration g bySloping pear shape splash head in heavy duty borosilicate glass fits 24 29 flask for vacuum distillation with splash prevention.